78565395 has 8 divisors (see below), whose sum is σ = 125704656. Its totient is φ = 41901536.

The previous prime is 78565391. The next prime is 78565453. The reversal of 78565395 is 59356587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78565395 - 2² = 78565391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78565391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2618832 + ... + 2618861.

It is an arithmetic number, because the mean of its divisors is an integer number (15713082).

Almost surely, 2^78565395 is an apocalyptic number.

78565395 is a deficient number, since it is larger than the sum of its proper divisors (47139261).

78565395 is a wasteful number, since it uses less digits than its factorization.

78565395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237701.

The product of its digits is 1134000, while the sum is 48.

The square root of 78565395 is about 8863.7122584163. The cubic root of 78565395 is about 428.2957512014.

The spelling of 78565395 in words is "seventy-eight million, five hundred sixty-five thousand, three hundred ninety-five".